Effect of Pesticide and Seed Dressing Time on Sugar Beet Seed Germination

作者：XI Xian-mei · 发表于：Inner Mongolia Agricultural Science and Technology · 年份：2009 · 研究领域：Soybean genetics and cultivation

The effect of two pesticidal chemical is different when dealing with sugar beet seed with 40% isofenphos-methyl and 65% phorate in different diluted concentration and different time.The results showed that there is hardly effect on germination rate and relative germination rate when dealing with sugar beet seed with 40% isofenphos-methyl(the usage ratio is that seed: liquid =1000g:10～20ml).However,it inhibited the seed germination when dealing with sugar beet seed with 65% phorate,it reduced about a percentage of 2.5～3.3 and1.7～7.5 less than the control at 10d and 17d after training respectively.The relative germination rate is only 65.8%～87.3%.When the sugar beets were treated using 40% isofenphos-methyl and 65% phorate synchronously(the usage ratio is that seed:liquid=1000g:30～40ml),germination rate is influenced under the conditions in the greenhouse,it reduced about a percentage of 36.7～47.5 and 21.8～33.8 less than the control at 10d and 17d after training respectively.The relative germination rate is only 34.1%～44.6%.